bentonite adsorption coagulation treatment of recycled fiber pulping

  • School of Chemical Technology Degree Programme of Aaltodoc

    Sep 23, 2013 Comprehensive scientific knowledge on fiber adsorption and filtrate fixation of the polymers was obtained by polymers in conjunction with APAM and with CPAM and bentonite appeared efficiency in drainage. recycled pulp, the dissolved and colloidal substances can be treated with the vinylamine 

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  • Modified nano and microcellulose based adsorption Doria

    extraction, ion exchange, electrolytic treatment, electroprecipitation, coagulation, flotation, evaporation .. the sorption of metal ions. Regenerated cellulose wood pulp was grafted with the vinyl monomer glycidyl methacrylate The cellulose was extracted from the sisal fiber using chemical and mechanical treatments.

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  • Pulp and paper effluent management Ingenta Connect

    Pulp and paper effluent management. Kevin A. Kahmark, Jay P. Unwin. INTRODUCTION. This review is divided into the following five topical areas: aerobic treatment . MBBR for treatment of wastewater at a recycledfiber paper mill in Ohio. adsorbed onto the daily wasted biomass rather than being metab olized.

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  • Simultaneous removal of multiple pesticides from water: effect of

    Coagulationflocculation is the most widely used watertreatment process, but the efficiency to remove pesticides and other organic pollutants are limited compared to adsorption process. Thus, simultaneous action of adsorption on normal bentonite or organomodified montmorillonite clays [modified with octadecylamine 

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  • polymers MDPI

    Apr 1, 2018 wastewater treatments [15], due to the sorption of dyes, humic acids, metallic ions, bacterial cells, by coagulation, the addition of retention and drainage aid also impart better drainability to the pulp nanosilica retention/drainage system used in recycled cellulosic fibers was studied [37] and the.

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  • Functionalized nanocelluloses in wastewater treatment Jultika

    tested as flocculants in the coagulationflocculation treatment of municipal wastewater, while the flocculation performance of ionic The research work for this thesis was carried out in the Fibre and Particle. Engineering group at the adsorption with sulfonated wheat pulp nanocelluloses. J. Water Process Eng. In press 

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  • 1 Influence of Water Quality in the Efficiency of Retention Aids

    Keywords: closure of water circuits, paper industry, ionic polyacrylamide, bentonite, anionic trash, flocculation throughout the different stages of the production process, from pulping to forming. It is also used as a water qualities, outflowing from different water treatments available in a recycling paper mill, on the 

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  • Chapter 29 The Pulp, Paper and Wood Industry ScienceDirect

    Full treatment of the remaining pulpmill wastewater is composed of physical, physical–chemical, and biological methods. The cellulose fibers can be removed from the effluent by a settling process. Wastewater from the manufacture of hardboard and fiberboard contains suspended matter, but approximately 40% of the 

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  • Removal of phenol from water by adsorption–flocculation using

    bentonite displays a high affinity for phenol, possibly because phenol molecules interact favorably with the benzene ring in BTMA ion made adsorption–flocculation with BTMAbentonite attractive for continuous treatment of large volumes of industrial tralization of the bentonite and subsequent coagulation. The floc is 

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  • Bentonite Adsorption & Coagulation Treatment of Recycled Fiber

    A bentonite & PAM particle flocculation system was employed in recycled fiber pulp wastewater treatment in this paper. The optimum conditions of the adsorption & coagulation treatment was explored and optimized and effects of the treatment were focused on, especially stickies substances removal. Under the optimal 

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  • flocculation coagulation Technical Learning College

    Jan 1, 2018 treatment methods, flocculation and coagulation, understanding pathogens, understand the reduced by adsorption of the coagulated and flocculated solids onto the adsorption media and onto the solids . recycle treatment information to the State, which may require that modifiions to the recycle 

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  • US20060048908A1 System for control of stickies in recovered and

    Generally, the first step in conventional recycling is to disassociate the paper into individual fibers with water to form a pulp slurry and to detach the ink and .. 3, the stickies count (area, ppm) is significantly reduced by enzyme treatment alone and by bentonite treatment alone, from 3.50 to 2.62 and 2.52, respectively.

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  • RECENT DEVELOPMENTS IN PAPERMAKING CHEMICALS

    The introduction or increased levels of recycled fiber, higher brightness targets, increased degree of closure of water systems, lower basis weight of produced . and Englezos [16] recognized the need to improve PEO program performance by augmenting it with a polyacrylate polymer, bentonite and coagulant, respectively.

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  • Martin Hubbe PhD North Carolina State University, North Carolina

    Meanwhile, a suspension of cellulosic fibers and calcium carbonate particles was prepared from recycled copy paper, which was treated sequentially with Chitosan, an abundant carbohydrate biopolymer, in 4 dosages (0, 0.75, 1.25 and 2% based on dry weight of pulp) was applied with bentonite in 4 dosages (0, 0.3, 0.6 

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  • Kraft Pulping Effluent Treatment and Refuse : State of the Art

    It is aimed at color removal before biological oxidation and effluent discharge. 2. Other precipitationcoagulation methods have been investi gated, but only alum treatment is still being pursued with some promise (see conclusion B,7). 3. Reverse osmosis is under active investigation in the sulfite pulping industry for the 

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  • Chemicals for Paper Processing Soy New Uses

    Utilization of Recycled Fiber in United States Paper Products by Sector, 2005 ... 24. 14. Potential .. Hybrid pulping methods use a combination of chemical and thermal treatment, followed by a mechanical . Flocculants adsorb on particles and cause destabilization mainly by bridging or by creating patches of 

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  • Extraction of Technical Lignins from Pulping Spent Springer

    are black liquor and prehydrolysis liquor of Kraft pulping process and spent liquors .. carbon fibers [ 47, 48], as the impurity content of these separated lignin or lignin flocs is not significant [ 41, 42, 49]. 2.3.3 Adsorption. Adsorption can be an .. (treated under the conditions of 40 g/g of SL/bentonite at 50 °C and 3 h) [ 13].

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  • review of literature Shodhganga

    raw materials and the recycled fibers and rest 30% comes from wood based raw materials (IPMA, 2006). . through each manufacturing step and chemical treatment, and separates spent pulping chemicals and the .. hydroxides, which in turn adsorb the colloidal particles by sweep coagulation and form larger flocks that 

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  • US5798023A Combination of talcbentonite for deposition control

    Cooking and mechanical agitation which occur during the pulping by the sulfate process liberate pitch and these natural dispersing agents. However, as a result of the . This talc/bentonite treatment program is also effective in treating newsprint made from either or recycled fibers. It is understood that the term, 

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  • Instituteof Paper Science and Technology Atlanta SMARTech

    fresh water supply, but the majority originate from raw materials and pulping and papermaking additives such as addition to water closure, the increased use of recycled fibers is another source of core.nation of pulp inorganic electrolyte on the adsorption of ionic starch on the solid suspension less attention was paid 

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  • The Dispersion Science of Papermaking NC State

    Apr 8, 2004 is subjected to a series of steps, including treatment with polyionic species and .. still can be formed from fibers with adsorbed lignin, .. Coagulation. Collisions among fibers in a flowing slurry of paper making pulp tend to be dominated by hydrodynamic considerations. By contrast, collisions leading to 

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  • US20060048908A1 System for control of stickies in recovered and

    Generally, the first step in conventional recycling is to disassociate the paper into individual fibers with water to form a pulp slurry and to detach the ink and .. 3, the stickies count (area, ppm) is significantly reduced by enzyme treatment alone and by bentonite treatment alone, from 3.50 to 2.62 and 2.52, respectively.

    >>READ
  • peerreview article BioResources

    fibers. Generally, direct dyes are polyazo compounds. As an alternative, basic dyes are sometimes used, especially for dying of mechanical pulp, or in printing inks .. alysis with special TiO2coated electrodes (Pelegrini et al. 1999). PhysicoChemical Treatments. Adsorption. Dyes may be removed from process water by 

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  • Functionalized nanocelluloses in wastewater treatment Jultika

    tested as flocculants in the coagulationflocculation treatment of municipal wastewater, while the flocculation performance of ionic The research work for this thesis was carried out in the Fibre and Particle. Engineering group at the adsorption with sulfonated wheat pulp nanocelluloses. J. Water Process Eng. In press 

    >>READ
  • Extraction of Technical Lignins from Pulping Spent Springer

    are black liquor and prehydrolysis liquor of Kraft pulping process and spent liquors .. carbon fibers [ 47, 48], as the impurity content of these separated lignin or lignin flocs is not significant [ 41, 42, 49]. 2.3.3 Adsorption. Adsorption can be an .. (treated under the conditions of 40 g/g of SL/bentonite at 50 °C and 3 h) [ 13].

    >>READ
  • Simultaneous removal of multiple pesticides from water: effect of

    Coagulationflocculation is the most widely used watertreatment process, but the efficiency to remove pesticides and other organic pollutants are limited compared to adsorption process. Thus, simultaneous action of adsorption on normal bentonite or organomodified montmorillonite clays [modified with octadecylamine 

    >>READ
  • Characterization of Alum Floc by Image Analysis Environmental

    Fly ash based adsorbent for treating bleaching effluent of kraft pulping process Advances in coagulation technique for treatment of fluoridecontaminated water: a critical review . The impact of recycling alumhumicfloc (AHF) on the removal of natural organic materials (NOM): Behavior of coagulation and adsorption.

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  • How to comply Gov.uk

    Paper and Pulp (EPR .. In many appliions the best conventional effluent treatment produces a good water quality Consider all avenues for recovery of fibre and filler from deinking and wastewater treatment such as: • use in insulating building blocks. • recycling within the process or, at least, within the industry, to a 

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  • Approach in Choosing Suitable Technology for Semantic Scholar

    Nov 22, 2012 biological processes adsorption, advanced oxidation and membrane filtration has been used for their pollution control [3739]. Chemical coagulation followed by sedimentation is a probed technique for the treatment of high suspended solids pulp wastewater especially those formed by colloidal matters.

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  • New advances in microparticle retention TAPPSA

    Microparticle retention, drainage and formation programs have been used in the production of pulp and paper for over 25 years. aid programs have evolved from the use of a single flocculant or conventional coagulantflocculant program to include the use of anionic microparticles based on bentonite clays or silicas.

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  • Investigation of Recycled Paper Deinking Mechanisms

    deposition. Three types of food grade soybean oils are tested for utilization in the paper recycling industry. Fatty acids extracted from oils are utilized in one loop flotation Bentonite clay is successful in removing submicron hydrophilic inkjet ink pigment particles. . Pulping Consistency and Typical Pulping Conditions .

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